Figure 1.

Calculated Rxx vs B for dark (no MW) and MW situations. The ZRS is marked with an arrow. The MW frequency is 100 GHz. We observe clearly
the peculiar features for bilayer systems: shoulders at minima and narrower peaks
regarding the single occupied subband case (see inset). Shoulders and narrow peaks
are the outcomes of the interference between the intra- and inter-subband scattering
processes.